Home / 19,157.80-26,415.78-12,342.76

Finding the Fourth Proportional to 19,157.80, 26,415.78 and 12,342.76

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Solution

The fourth proportional to 19,157.80, 26,415.78 and 12,342.76 is: 17,018.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,157.80 : 26,415.78 = 12,342.76 : x
  2. Step 2: Convert to fraction form
    19,157.80/26,415.78 = 12,342.76/x
  3. Step 3: Cross multiply
    19,157.80x = 26,415.78 × 12,342.76
  4. Step 4: Simplify right side
    19,157.80x = 326,043,632.75
  5. Step 5: Solve for x
    x = 326,043,632.75/19,157.80
  6. Step 6: Final answer
    x = 17,018.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.